fbt Published September 21, 2018 at 2418 × 3700 in Gravitational waves measure colour of black holes Enrico Barausse Tell your friends about CQG+Click to email a link to a friend (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading...